Bidirectional composite deflection tilting gravity casting method and device thereof

Abstract

The invention discloses a bidirectional composite deflection tilting gravity casting method and a device thereof. A casting mold and a pouring cup fixed on the casting mold both controllably perform bidirectional composite three-dimensional space movement of tilting and swinging on a casting machine workbench; the pouring cup rotates towards the above of the casting mold from the position horizontal to the casting mold or the position forming certain tilting angle with the casting mold, and the pouring cup pours metal liquid into the casting mold in the movement process. The invention also provides a device capable of realizing composite three-dimensional space movement of tilting and swinging. The casting method and the casting device of the invention can cause the resultant movement of vertical rotation and horizontal swinging of the casting mold; the height of the metal hydrostatic head gradually increases to adjust casting position, direction and metal liquid casting speed in the pouring process in real time and satisfy the casting technological requirements of complex allotype castings, such as magnesium alloy intake manifolds and the like; in addition, the invention also realizes stable filling, reduces defects of air holes, mixing and poor pouring, improves feeding state and improves the casting quality of complex allotype castings.

Description

technical field [0001] The invention relates to a gravity casting method and its device, in particular to a two-way compound displacement tilting gravity casting method and its device. Background technique [0002] Because light metals such as magnesium and aluminum are easy to oxidize, castings are prone to defects such as slag inclusions and pores, the gravity casting generally adopts the bottom injection method, but the temperature of the lower part of the casting is high during bottom injection, which is not conducive to feeder shrinkage, and is prone to shrinkage cavities, Shrinkage and other defects. [0003] In the prior art, the most representative patent CN 1634673A discloses a tilting gravity casting method, the casting mold can be controlled to rotate between the tilted state and the horizontal state, and when the casting mold turns from the tilted state to Pouring is performed during the process of returning to the horizontal state. The tilting gravity casting ...

AI Technical Summary

Problems solved by technology

Therefore, complex and variable pouring must be performed according to the structure of the special-shaped casting, and the mold is required to form a variety of complex motion trajectories in the three-dimensional space. The casting methods and devices in the prior art cannot meet the requirements of casting special-shaped complex castings.

Images